Near Tokyo's Haneda Airport, two commercial aircraft passed within 20 metres of each other — a margin so thin that only one functioning collision avoidance system stood between routine flight and catastrophe. The incident, involving an All Nippon Airways jet arriving from Shanghai, has quietly reverberated beyond Japan, prompting China's aviation community to examine whether its own rapidly expanding industry is truly protected by the safety architecture it has built. In the long arc of aviation progress, such near-misses serve as the industry's conscience — reminders that confidence in comple